<?phpclass devtools_skins_page extends page {  protected $skins = array();  public function __construct() {  }    public function prepare() {    $skins = utils::get_files_in("skins");    foreach ($skins as $skin)       if (is_dir("skins/$skin") && $skin!="." && $skin!="..")        array_push($this->skins,strtolower($skin));  }    public function finish() {  }    public function render_block($block_name) {    $block = $this->get_block($block_name);    $block->render_html();  }    public function render_blocks($position) {    //  }}